120645324810 has 96 divisors (see below), whose sum is σ = 319303612368. Its totient is φ = 31596687360.

The previous prime is 120645324781. The next prime is 120645324823. The reversal of 120645324810 is 18423546021.

It is a happy number.

120645324810 is a `hidden beast` number, since 1 + 2 + 0 + 645 + 3 + 2 + 4 + 8 + 1 + 0 = 666.

120645324810 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 8620565409 + 112024759401 = 92847^2 + 334701^2 .

It is a super-2 number, since 2×120645324810² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3678444 + ... + 3711096.

Almost surely, 2^120645324810 is an apocalyptic number.

120645324810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120645324810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159651806184).

120645324810 is an abundant number, since it is smaller than the sum of its proper divisors (198658287558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120645324810 is a wasteful number, since it uses less digits than its factorization.

120645324810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33400 (or 33397 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 120645324810 in words is "one hundred twenty billion, six hundred forty-five million, three hundred twenty-four thousand, eight hundred ten".